Hydraulic turbine



" H. B. TAYLOR HYDRAULI C TURBINE Original Filed July 24 1917 INVENTORATTORNEY Patented Dec. 16, 1924.

UNlTED SiTATES PATENT HARVEY BIRCHARD TAYLQR, Q33 1 Original applicationfiled July 24, 1917 HYDRAULIG TURBINE.

To all whom it may concern.

Be it known that I, HMWEY BIKCHARJ} TAYLon, a citizen of the UnitedStates, 1'(3' siding at Philadelphia and St Philadelphia in the countyof ate of Pennsylvanun for a hydraulic turbi and particularly to such aan annular draft tube ne of the inflow type turbine having extendingdownward ly and outwardly from the turbine runner.

vide suitable a turbine and ture.

vane ring to go in such a turbine. Still Another object of my inventionis to prosupporting means for such its assoclated masonry struc Anotherobject is to make a stay the draft conduit of another object of myinvention is to provide columns or piers in the draft conduit be neathsuch a turbine that shall be effective as supports for the superposedstructure have the proper disp respect to the water and at the same timeosition as vanes with flow in the conduit.

These and other objects of my invention will be made apparent in thefollowing disclosure of a specific form in which the invention may beembodied.

In the accompanying drawings illustrat ing the invention,

Figs. 1 and 2 are v sectional structure embodying ertical and horizontalviews respectively of a turbine the in vention.

The turbine runner 12 has vanes .11 and is of the vertical.

speed ring 15 is provi to the adjustable guide the entering flow has itaround the axis of the shaft conduit terminates 11'1 portion 14surrounding type. The supply a spiral or volute the runner 12. Adirecting the flow vanes 16 so that ded runner as a centerq Directlybeneath the runner 12 is a central conical core 20 having its apex 21close to the center of the runner and its surfac discharge end of the e22 formed as a surface of revolution inclined for instance at an angleof about 45 of the runner.

to the axis of rotation Above this conical base and around it themasonry substructure formed with the surface of revolution around therunner axis as a center spaced from the surface 22 t flaring draft tubecl 0 provide an annular extending downward Serial No. 182,498.

whirl imparted to HILADELPHIA, NSYLVANIA.

Divided and, this application filed. I iay 26, Serial No. 563,811.

and outward from the runner discharge, A

stay vane ring 25 is provided having stay vanes 24: with base ring inthe conical foundation 20 and crown ring 26 iii the sub structure aboveand 24 are inclined to radii directly supporting the upper speed vanering 15.

from the runner axis These vanes as shown in 2 so as to conform to thegeneral whirling shape of the discharu'c stream from tilt-J ZHDHQ r, thepassages between these vanes increasing in cross sec tional area in thedirecti The discharge from t ceived in the draft tube nular columnwhirling core 20 and filling the on of outflow.

he runner 12 is red in a diagonal anaround the conical space between thecore surface and the outer surface of revolution 23.

The outflow from the runner thus received in its natural whirlingdirection and surfaces along expandi celerating ponents of the velocityconversion of velocity head and reduce the back The stay vanes runner.

guided between inner and outer np; spiral lines deboth meridian andwhirling comto an efficient head into pressure pressure on the 24 areclose to the runner being spaced therefrom a. distance less than theheight of o and by conforming to th spiral lines of flow, the pate inthe difiusing' ac space (I. the passages thus acting as diifusen.

25 also provides ne of the stay vanes e natural expanding stay vanesparticition of the annular between the vanes The stay vane ring acolumnar support for the substructure from the foundation below and bydiverting the water diagonally outward as shown immediately below therunner, the

stay vanes .24

may be arranged in a circle of small diameter immediately below thespeed vanes 15 in the intake and these draft tube stay vanes may b shortlength. This con e of comparatively struction thus combines compactnesswith strength and is particularly adapted for the substructure is to band the flow ing components is to in a limited space.

I claim installations where e shallow and wide both as to meridian andwhirle decelerated with- I. In a hydraulic turbine the combination witha runner adapted t downwardly and o discharge the flow outwardly, of adraft tube having a diagonally extending outward wall around thedischarge end of said runner and a ring of stay van es extendingdownwardly from said wall and closely surrounding the discharge end ofsaid runner so as to be spaced therefrom less than the height of one ofsaid stay vanes.

'2. In combination, a turbine runner with vertical axis, a masonryfoundation struc ture belo the runner having an outflow ned therein,said conduit spreadin diagonally downward and outward from said runnerand around said axis on every side, and metal stay vanes in said conduitarr ged in a series which closely surrounds the rimner so as to bespaced therefrom less than the height of one of said stay vanes andsupports the upper wall of said conduit on the lower wall thereof, eachsuch stay vane having a shape and position to offer small resis ance tothe outflowing water.

3. In combination, turbine runner with vertical axis, a masonryoundation structure below the runner having an outflow conduit formedtherein of generally conical formation inclined at substantially to saidaxis, said conduit spreading diagonally downward and outward from saidrunner and around said axis on every side, and metal stay vanes in saidconduit arranged in a series which closely surrounds the runner so as tobe spaced therefrom less than the height of one of said stay vanes andsupports the upper wall of said conduit on the lower wall thereof, eachsuch stay vane having a shape and position to offer small resistance tothe outflowing water.

4:. In combination, a turbine runner with vertical axis, a masonryfoundation structure below the runner having an outflow conduit formedtherein and comprising an inner deflecting conical core having itssurface inclined at substantially 45 to said :7 is, said conduitspreading diagonally domiward and outward from said runner and aroundsaid axis on every side, and metal stay vanes in said conduit arrangedin a series which closely surrounds the runner so as to be spacedtherefrom less than the height of one of said stay vanes and supportsthe upper wall of said conduit on the lower wall thereof, each such stayvane having a shape and position to offer small resi Lance to theoutfiowing water.

in combination, a turbine'runner with 'i'ertical axis, a masonryfoundation structure below the runner having a downwardly diver ingconical diffusion chamber formed therein between upper and lowersurfaces of revolugion extending in a generally diagonal direction andgradually diverging from each by which they other so that the distanceare spaced apart continually increases, and a stay vane ring with itsbase engaging the lower wall of said diffusion chamber and is crown.engaging and supporting the upper wall thereof, and a speed ring aroundthe runner with its base standingon the crown of said stay vane ring.

6. In combination, a draft tube for a turblue and a single body withinand surrounded by said tube, the said body having arurved sectionalprofile and an unobstructire outer surface, the diameter of said bodygradually increasing in the outlet direction, and the inner part of thetube surrounding said body being gradually enlarged in the saiddirection, anda series of axially extending stay vanes between saidinner body and said tube closely surrounding said runner and spacedtherefrom a distance less than the height of one of said stay vanes.

HARVEY BIRCHARD TAYLOR.

